Touch apparatus

Abstract

A touch apparatus including a control button and a touch panel is provided. The control button includes an insulating main body and a conductive member disposed on the insulating main body. The touch panel is disposed on a side of the control button, and the touch panel includes a cover plate and a touch-sensing element. The conductive member is located between the insulating main body and the cover plate. The cover plate is located between the control button and the touch-sensing element. The touch-sensing element is electrically insulated from the conductive member. The touch-sensing element includes a plurality of electrodes disposed corresponding to the control button. The conductive member moves along with the movement of the insulating main body, and the movement of the conductive member causes a capacitance change of at least one of the plurality of electrodes.

What is claimed is: 
     
         1 . A touch apparatus, comprising:
 a control button comprising an insulating main body and a conductive member disposed on the insulating main body; and   a touch panel disposed on a side of the control button, and the touch panel comprising:
 a cover plate, wherein the conductive member is located between the insulating main body and the cover plate; and 
 a touch-sensing element, wherein the cover plate is located between the conductive member and the touch-sensing element, the touch-sensing element is electrically insulated from the conductive member, the touch-sensing element comprises a plurality of electrodes disposed corresponding to the control button, the conductive member moves along with movement of the insulating main body, and the movement of the conductive member causes a capacitance change of at least one of the plurality of electrodes. 
   
     
     
         2 . The touch apparatus as recited in  claim 1 , wherein the conductive member comprises at least one elastic piece, and the control button further comprises:
 a circuit board located between the conductive member and the touch panel, and the circuit board comprising:   a circuit substrate having a first surface and a second surface, and the second surface being located between the conductive member and the first surface;   a first circuit layer disposed on the first surface, wherein the first circuit layer comprises a plurality of first electrodes, and the plurality of first electrodes respectively overlap the plurality of electrodes of the touch-sensing element; and   a second circuit layer disposed on the second surface and electrically connected to the first circuit layer, wherein the movement of the insulating main body causes the conductive member to be in contact with the second circuit layer.   
     
     
         3 . The touch apparatus as recited in  claim 2 , wherein the circuit board does not move along with the movement of the insulating main body. 
     
     
         4 . The touch apparatus as recited in  claim 2 , wherein the at least one elastic piece comprises a first elastic piece and a plurality of second elastic pieces, and the first elastic piece is shorter than each of the second elastic pieces,
 the second circuit layer comprises a first conductive wire, a second conductive wire, a third conductive wire, a first ground wire and a second ground wire, the first conductive wire, the first ground wire, the second conductive wire, the second ground wire and the third conductive wire are sequentially arranged in a concentric manner from inside to outside or from outside to inside, the first conductive wire, the second conductive wire, the third conductive wire and the first ground wire are continuous conductive wires, the second ground wire is constituted by a plurality of conducting portions, and the plurality of conducting portions are separated from each other, wherein   when the insulating main body is pressed, the first elastic piece is in contact with the first conductive wire and the first ground wire, and when the insulating main body is rotated, the plurality of second elastic pieces are respectively in contact with the second conductive wire and the third conductive wire, and the plurality of second elastic pieces are intermittently in contact with the plurality of conducting portions.   
     
     
         5 . The touch apparatus as recited in  claim 2 , wherein the second circuit layer comprises a plurality of second electrodes, and the plurality of second electrodes of the second circuit layer are overlapped with and electrically connected to the plurality of first electrodes of the first circuit layer, respectively,
 the first circuit layer further comprises a first ground ring, the second circuit layer further comprises a second ground ring, the touch-sensing element further comprises a third ground ring, the first ground ring and the second ground ring are electrically connected to each other, and the first ground ring, the second ground ring, and the third ground ring are overlapped with each other, wherein   when the insulating main body is rotated, the at least one elastic piece is in contact with one of the plurality of second electrodes of the second circuit layer and the second ground ring.   
     
     
         6 . The touch apparatus as recited in  claim 2 , wherein the control button further comprises:
 a plurality of position restricted parts fixed on the second surface and disposed along a periphery of the insulating main body.   
     
     
         7 . The touch apparatus as recited in  claim 1 , wherein the conductive member comprises a conductive pad, the plurality of electrodes of the touch-sensing element comprise a plurality of signal electrodes and a plurality of ground electrodes, the plurality of signal electrodes and the plurality of ground electrodes are alternately arranged along a circumferential direction of the insulating main body, an area of the conductive pad is 1.5 to 2 times an area of each of the plurality of signal electrodes, and the area of the conductive pad is 1.5 to 2 times an area of each of the plurality of ground electrodes. 
     
     
         8 . The touch apparatus as recited in  claim 1 , wherein the conductive member comprises a conductive pad, the plurality of electrodes of the touch-sensing element comprise a plurality of driving electrodes, a plurality of sensing electrodes and a plurality of ground electrodes, the plurality of driving electrodes, the plurality of sensing electrodes and the plurality of ground electrodes are alternately arranged along a circumferential direction of the insulating main body, an area of the conductive pad is 2.5 to 3 times an area of each of the plurality of driving electrodes, the area of the conductive pad is 2.5 to 3 times an area of each of the plurality of sensing electrodes, and the area of the conductive pad is 2.5 to 3 times an area of each of the plurality of ground electrodes. 
     
     
         9 . The touch apparatus as recited in  claim 1 , wherein the insulating main body has a center opening, and the center opening exposes at least one of the plurality of electrodes of the touch-sensing element. 
     
     
         10 . The touch apparatus as recited in  claim 1 , further comprising:
 a display device, wherein the touch-sensing element is located between the cover plate and the display device.